kmod.mk revision 151646
1178525Sjb# From: @(#)bsd.prog.mk 5.26 (Berkeley) 6/25/91 2178525Sjb# $FreeBSD: head/sys/conf/kmod.mk 151646 2005-10-25 09:05:07Z ru $ 3178525Sjb# 4178525Sjb# The include file <bsd.kmod.mk> handles building and installing loadable 5178525Sjb# kernel modules. 6178525Sjb# 7178525Sjb# 8178525Sjb# +++ variables +++ 9178525Sjb# 10178525Sjb# CLEANFILES Additional files to remove for the clean and cleandir targets. 11178525Sjb# 12178525Sjb# EXPORT_SYMS A list of symbols that should be exported from the module, 13178525Sjb# or the name of a file containing a list of symbols, or YES 14178525Sjb# to export all symbols. If not defined, no symbols are 15178525Sjb# exported. 16178525Sjb# 17178525Sjb# KMOD The name of the kernel module to build. 18178525Sjb# 19178525Sjb# KMODDIR Base path for kernel modules (see kld(4)). [/boot/kernel] 20178525Sjb# 21178525Sjb# KMODOWN Module file owner. [${BINOWN}] 22178525Sjb# 23178525Sjb# KMODGRP Module file group. [${BINGRP}] 24178525Sjb# 25178525Sjb# KMODMODE Module file mode. [${BINMODE}] 26178525Sjb# 27178525Sjb# KMODLOAD Command to load a kernel module [/sbin/kldload] 28178525Sjb# 29178525Sjb# KMODUNLOAD Command to unload a kernel module [/sbin/kldunload] 30178525Sjb# 31178525Sjb# MFILES Optionally a list of interfaces used by the module. 32178525Sjb# This file contains a default list of interfaces. 33178525Sjb# 34178525Sjb# PROG The name of the kernel module to build. 35178525Sjb# If not supplied, ${KMOD}.ko is used. 36178525Sjb# 37178525Sjb# SRCS List of source files. 38178525Sjb# 39178525Sjb# DESTDIR The tree where the module gets installed. [not set] 40178525Sjb# 41178525Sjb# +++ targets +++ 42178525Sjb# 43178539Sjb# install: 44178539Sjb# install the kernel module; if the Makefile 45178539Sjb# does not itself define the target install, the targets 46178525Sjb# beforeinstall and afterinstall may also be used to cause 47178525Sjb# actions immediately before and after the install target 48178525Sjb# is executed. 49178525Sjb# 50178525Sjb# load: 51178525Sjb# Load a module. 52178525Sjb# 53178525Sjb# unload: 54178525Sjb# Unload a module. 55178525Sjb# 56178525Sjb 57178539SjbAWK?= awk 58178539SjbKMODLOAD?= /sbin/kldload 59178539SjbKMODUNLOAD?= /sbin/kldunload 60178525SjbOBJCOPY?= objcopy 61178539Sjb 62178525Sjb.if defined(KMODDEPS) 63178525Sjb.error "Do not use KMODDEPS on 5.0+; use MODULE_VERSION/MODULE_DEPEND" 64178525Sjb.endif 65178525Sjb 66178525Sjb.include <bsd.init.mk> 67178525Sjb 68178539Sjb.SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S 69178539Sjb 70178539Sjb.if ${CC} == "icc" 71178525SjbCFLAGS:= ${CFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/} 72178525Sjb.else 73178525Sjb. if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing) 74178525SjbCFLAGS+= -fno-strict-aliasing 75178525Sjb. endif 76178525SjbWERROR?= -Werror 77178525Sjb.endif 78178525SjbCFLAGS+= ${WERROR} 79178525SjbCFLAGS+= -D_KERNEL 80178525SjbCFLAGS+= -DKLD_MODULE 81178525Sjb 82178539Sjb# Don't use any standard or source-relative include directories. 83178539Sjb.if ${CC} == "icc" 84178539SjbNOSTDINC= -X 85178525Sjb.else 86178539SjbNOSTDINC= -nostdinc 87178525Sjb.endif 88CFLAGS:= ${CFLAGS:N-I*} ${NOSTDINC} -I- ${INCLMAGIC} ${CFLAGS:M-I*} 89.if defined(KERNBUILDDIR) 90CFLAGS+= -DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h 91.endif 92 93# Add -I paths for system headers. Individual module makefiles don't 94# need any -I paths for this. Similar defaults for .PATH can't be 95# set because there are no standard paths for non-headers. 96CFLAGS+= -I. -I@ 97 98# Add -I path for altq headers as they are included via net/if_var.h 99# for example. 100CFLAGS+= -I@/contrib/altq 101 102# Add a -I path to standard headers like <stddef.h>. Use a relative 103# path to src/include if possible. If the @ symlink hasn't been built 104# yet, then we can't tell if the relative path exists. Add both the 105# potential relative path and an absolute path in that case. 106.if exists(@) 107.if exists(@/../include) 108CFLAGS+= -I@/../include 109.else 110CFLAGS+= -I${DESTDIR}/usr/include 111.endif 112.else # !@ 113CFLAGS+= -I@/../include -I${DESTDIR}/usr/include 114.endif # @ 115 116.if ${CC} != "icc" 117CFLAGS+= -finline-limit=${INLINE_LIMIT} 118.endif 119 120# Disallow common variables, and if we end up with commons from 121# somewhere unexpected, allocate storage for them in the module itself. 122.if ${CC} != "icc" 123CFLAGS+= -fno-common 124.endif 125LDFLAGS+= -d -warn-common 126 127CFLAGS+= ${DEBUG_FLAGS} 128.if ${MACHINE_ARCH} == amd64 129CFLAGS+= -fno-omit-frame-pointer 130.endif 131 132.if ${MACHINE_ARCH} == "powerpc" 133CFLAGS+= -mlongcall -fno-omit-frame-pointer 134.endif 135 136OBJS+= ${SRCS:N*.h:R:S/$/.o/g} 137 138.if !defined(PROG) 139PROG= ${KMOD}.ko 140.endif 141 142.if !defined(DEBUG_FLAGS) 143FULLPROG= ${PROG} 144.else 145FULLPROG= ${PROG}.debug 146${PROG}: ${FULLPROG} 147 ${OBJCOPY} --strip-debug ${FULLPROG} ${PROG} 148.endif 149 150.if ${MACHINE_ARCH} != amd64 151${FULLPROG}: ${KMOD}.kld 152 ${LD} -Bshareable ${LDFLAGS} -o ${.TARGET} ${KMOD}.kld 153.if !defined(DEBUG_FLAGS) 154 ${OBJCOPY} --strip-debug ${.TARGET} 155.endif 156.endif 157 158EXPORT_SYMS?= NO 159.if ${EXPORT_SYMS} != YES 160CLEANFILES+= export_syms 161.endif 162 163.if ${MACHINE_ARCH} != amd64 164${KMOD}.kld: ${OBJS} 165.else 166${FULLPROG}: ${OBJS} 167.endif 168 ${LD} ${LDFLAGS} -r -d -o ${.TARGET} ${OBJS} 169.if defined(EXPORT_SYMS) 170.if ${EXPORT_SYMS} != YES 171.if ${EXPORT_SYMS} == NO 172 touch export_syms 173.elif !exists(${.CURDIR}/${EXPORT_SYMS}) 174 echo ${EXPORT_SYMS} > export_syms 175.else 176 grep -v '^#' < ${EXPORT_SYMS} > export_syms 177.endif 178 awk -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \ 179 export_syms | xargs -J% ${OBJCOPY} % ${.TARGET} 180.endif 181.endif 182.if !defined(DEBUG_FLAGS) && ${MACHINE_ARCH} == amd64 183 ${OBJCOPY} --strip-debug ${.TARGET} 184.endif 185 186_ILINKS=@ machine 187.if ${MACHINE} != ${MACHINE_ARCH} 188_ILINKS+=${MACHINE_ARCH} 189.endif 190 191all: objwarn ${PROG} 192 193beforedepend: ${_ILINKS} 194 195# Ensure that the links exist without depending on it when it exists which 196# causes all the modules to be rebuilt when the directory pointed to changes. 197.for _link in ${_ILINKS} 198.if !exists(${.OBJDIR}/${_link}) 199${OBJS}: ${_link} 200.endif 201.endfor 202 203# Search for kernel source tree in standard places. 204.for _dir in ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys 205.if !defined(SYSDIR) && exists(${_dir}/kern/) 206SYSDIR= ${_dir} 207.endif 208.endfor 209.if !defined(SYSDIR) || !exists(${SYSDIR}/kern/) 210.error "can't find kernel source tree" 211.endif 212 213${_ILINKS}: 214 @case ${.TARGET} in \ 215 ${MACHINE_ARCH}) \ 216 path=${SYSDIR}/${MACHINE_ARCH}/include ;; \ 217 machine) \ 218 path=${SYSDIR}/${MACHINE}/include ;; \ 219 @) \ 220 path=${SYSDIR} ;; \ 221 esac ; \ 222 path=`(cd $$path && /bin/pwd)` ; \ 223 ${ECHO} ${.TARGET} "->" $$path ; \ 224 ln -s $$path ${.TARGET} 225 226CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS} ${_ILINKS} 227 228.if defined(DEBUG_FLAGS) 229CLEANFILES+= ${FULLPROG} 230.endif 231 232.if !target(install) 233 234_INSTALLFLAGS:= ${INSTALLFLAGS} 235.for ie in ${INSTALLFLAGS_EDIT} 236_INSTALLFLAGS:= ${_INSTALLFLAGS${ie}} 237.endfor 238 239.if !target(realinstall) 240realinstall: _kmodinstall 241.ORDER: beforeinstall _kmodinstall 242_kmodinstall: 243.if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) 244 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 245 ${_INSTALLFLAGS} ${FULLPROG} ${DESTDIR}${KMODDIR}/${PROG} 246.else 247 ${INSTALL} -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \ 248 ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR} 249.endif 250 251.include <bsd.links.mk> 252 253.if !defined(NO_XREF) 254afterinstall: _kldxref 255.ORDER: realinstall _kldxref 256.ORDER: _installlinks _kldxref 257_kldxref: 258 @if type kldxref >/dev/null 2>&1; then \ 259 ${ECHO} kldxref ${DESTDIR}${KMODDIR}; \ 260 kldxref ${DESTDIR}${KMODDIR}; \ 261 fi 262.endif 263.endif # !target(realinstall) 264 265.endif # !target(install) 266 267.if !target(load) 268load: ${PROG} 269 ${KMODLOAD} -v ${.OBJDIR}/${PROG} 270.endif 271 272.if !target(unload) 273unload: 274 ${KMODUNLOAD} -v ${PROG} 275.endif 276 277.if defined(KERNBUILDDIR) 278.PATH: ${KERNBUILDDIR} 279CFLAGS+= -I${KERNBUILDDIR} 280.for _src in ${SRCS:Mopt_*.h} 281CLEANFILES+= ${_src} 282.if !target(${_src}) 283${_src}: 284 ln -s ${KERNBUILDDIR}/${_src} ${.TARGET} 285.endif 286.endfor 287.else 288.for _src in ${SRCS:Mopt_*.h} 289CLEANFILES+= ${_src} 290.if !target(${_src}) 291${_src}: 292 touch ${.TARGET} 293.endif 294.endfor 295.endif 296 297MFILES?= dev/acpica/acpi_if.m dev/ata/ata_if.m dev/eisa/eisa_if.m \ 298 dev/iicbus/iicbb_if.m dev/iicbus/iicbus_if.m \ 299 dev/mii/miibus_if.m dev/ofw/ofw_bus_if.m \ 300 dev/pccard/card_if.m dev/pccard/power_if.m dev/pci/pci_if.m \ 301 dev/pci/pcib_if.m dev/ppbus/ppbus_if.m dev/smbus/smbus_if.m \ 302 dev/sound/pcm/ac97_if.m dev/sound/pcm/channel_if.m \ 303 dev/sound/pcm/feeder_if.m dev/sound/pcm/mixer_if.m dev/uart/uart_if.m \ 304 dev/usb/usb_if.m isa/isa_if.m \ 305 kern/bus_if.m kern/cpufreq_if.m kern/device_if.m \ 306 libkern/iconv_converter_if.m opencrypto/crypto_if.m \ 307 pc98/pc98/canbus_if.m pci/agp_if.m 308 309.for _srcsrc in ${MFILES} 310.for _ext in c h 311.for _src in ${SRCS:M${_srcsrc:T:R}.${_ext}} 312CLEANFILES+= ${_src} 313.if !target(${_src}) 314.if !exists(@) 315${_src}: @ 316.else 317${_src}: @/tools/makeobjops.awk @/${_srcsrc} 318.endif 319 ${AWK} -f @/tools/makeobjops.awk @/${_srcsrc} -${_ext} 320.endif 321.endfor # _src 322.endfor # _ext 323.endfor # _srcsrc 324 325.if !empty(SRCS:Mvnode_if.c) 326CLEANFILES+= vnode_if.c 327.if !exists(@) 328vnode_if.c: @ 329.else 330vnode_if.c: @/tools/vnode_if.awk @/kern/vnode_if.src 331.endif 332 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -c 333.endif 334 335.if !empty(SRCS:Mvnode_if.h) 336CLEANFILES+= vnode_if.h vnode_if_newproto.h vnode_if_typedef.h 337.if !exists(@) 338vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @ 339.else 340vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: @/tools/vnode_if.awk \ 341 @/kern/vnode_if.src 342.endif 343vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h 344 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -h 345vnode_if_newproto.h: 346 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -p 347vnode_if_typedef.h: 348 ${AWK} -f @/tools/vnode_if.awk @/kern/vnode_if.src -q 349.endif 350 351.for _i in mii pccard 352.if !empty(SRCS:M${_i}devs.h) 353CLEANFILES+= ${_i}devs.h 354.if !exists(@) 355${_i}devs.h: @ 356.else 357${_i}devs.h: @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 358.endif 359 ${AWK} -f @/tools/${_i}devs2h.awk @/dev/${_i}/${_i}devs 360.endif 361.endfor # _i 362 363.if !empty(SRCS:Musbdevs.h) 364CLEANFILES+= usbdevs.h 365.if !exists(@) 366usbdevs.h: @ 367.else 368usbdevs.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 369.endif 370 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -h 371.endif 372 373.if !empty(SRCS:Musbdevs_data.h) 374CLEANFILES+= usbdevs_data.h 375.if !exists(@) 376usbdevs_data.h: @ 377.else 378usbdevs_data.h: @/tools/usbdevs2h.awk @/dev/usb/usbdevs 379.endif 380 ${AWK} -f @/tools/usbdevs2h.awk @/dev/usb/usbdevs -d 381.endif 382 383.if !empty(SRCS:Macpi_quirks.h) 384CLEANFILES+= acpi_quirks.h 385.if !exists(@) 386acpi_quirks.h: @ 387.else 388acpi_quirks.h: @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 389.endif 390 ${AWK} -f @/tools/acpi_quirks2h.awk @/dev/acpica/acpi_quirks 391.endif 392 393.if !empty(SRCS:Massym.s) 394CLEANFILES+= assym.s genassym.o 395assym.s: genassym.o 396.if !exists(@) 397assym.s: @ 398.else 399assym.s: @/kern/genassym.sh 400.endif 401 sh @/kern/genassym.sh genassym.o > ${.TARGET} 402.if exists(@) 403genassym.o: @/${MACHINE_ARCH}/${MACHINE_ARCH}/genassym.c 404.endif 405genassym.o: @ machine ${SRCS:Mopt_*.h} 406 ${CC} -c ${CFLAGS:N-fno-common} \ 407 @/${MACHINE_ARCH}/${MACHINE_ARCH}/genassym.c 408.endif 409 410lint: ${SRCS} 411 ${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC:M*.c} 412 413.include <bsd.dep.mk> 414 415.if !exists(${.OBJDIR}/${DEPENDFILE}) 416${OBJS}: ${SRCS:M*.h} 417.endif 418 419.include <bsd.obj.mk> 420.include "kern.mk" 421